Sony XR-C7500R / XR-C7500RX Service Manual ▷ View online
29
29
XR-C7500R/C7500RX
• Waveforms
– MAIN Board –
– MAIN Board –
1
IC50
5
(OSCI)
2
IC100
ra
(XTLI38)
3
IC100
ug
(BCK)
7
IC800
ih
(EXTAL)
6
IC600
os
(X0)
2.6 Vp-p
231 ns
980 mVp-p
59 ns
4.3 Vp-p
352 ns
4
IC100
uh
(LRCK)
3.9 Vp-p
22.7
µ
s
5
IC600
uf
(X0A)
3 Vp-p
30.5
µ
s
– KEY Board –
1
IC901
oh
(OSC)
4.5 Vp-p
272 ns
980 mVp-p
54.2 ns
3.1 Vp-p
22.7
µ
s
30
30
XR-C7500R/C7500RX
7-14. PRINTED WIRING BOARD – KEY Board –
• Semiconductor
Location
(Component Side)
(Component Side)
Ref. No.
Location
IC951
C-5
LED901
C-2
LED902
A-2
LED903
A-3
LED904
C-3
LED910
B-12
LED911
B-12
LED912
A-12
LED913
A-5
LED914
B-5
LED915
B-5
• Semiconductor
Location
(Conductor Side)
(Conductor Side)
Ref. No.
Location
D901
B-13
D902
C-11
D903
C-11
D904
C-11
D951
C-5
D952
B-10
D954
B-10
IC901
B-8
Q901
A-3
Q902
A-3
Q903
A-5
(Page 28)
31
31
XR-C7500R/C7500RX
7-15. SCHEMATIC DIAGRAM – KEY Board –
•
See page 29 for Waveforms.
(Page
28)
32
32
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC10
TDA7402TR
IC50
SAA6588T/V2-118
IC100 CXD2726Q-4
34
35
36
37
38
39
40
41
42
43
44
33 32 31
30
29
28
27
26
25
24 23
22
21
20
19
18
16
15
14
13
12
1 2
3 4 5 6
7 8 9 10
11
INPUT
MULTIPLEXER
MAIN SOURCE
SELECTOR
MIXING
SELECTOR
SECOND SOURCE
SELECTOR
MAIN
PHONO
MAIN
CH0
AUX
AM
FM
IN-GAIN
+AUTO ZERO
+
LOUDNESS
SOFTMUTE
VOLUME
TREBLE
BASS
HP
LP
COMPANDER
VOICE
BANDPASS
MUTE
IN-GAIN
LOUDNESS
DIGITAL CONTROL
IIC-BUS
HIGH-CUT
S&H
25kHz
LP
DEMODULATOR
+STEREO ADJUST
+STEREO BLAND
MULTIPATH
DETECTOR
D/A
CONVERTER
PILOT
CANCELATION
PIL DET
PLL
AM/FM
NOISE BLANKER
BEEP
80kHz
LP
17
PULSE
FORMER
QUAL
SUPPLY
SECOND
MAIN
ACIN
MONO-
FADER
MONO-
FADER
MONO-
FADER
MONO-
FADER
MONO-
FADER
MONO-
FADER
SUBWOOFER
+PHASE
CONTROL
MIXER
OUTPUT
SELECTOR
FRONT
REAR
SW
VDD
SCL
SDA
GND
SM
QUAL
MPOUT
MPIN
LEVEL
MPX
AMIF
SEL
SER
FD1L+
FD1L–
FD1R+
FD1R–
FD2L+
FD2L–
FD2R+
FD2R–
AM
ACINLF
SWINR
SWINL
ACOUTR
ACOUTL
CREF
MUX
MD1
MD1G
MD2
MD2G
ACINLR
ACINRF
ACINRR
OUTLF
OUTLR
OUTRF
OUTRR
OUTSWL
OUTSWR
OUTSSL
OUTSSR
SCOUT
MRO
MPTH
TCON
OSCO
OSCI
VSSD
VDDD
DAVN
SDA
VREF
MPX
VSSA
VDDA
AFIN
MAD
PSWN
SCL
2
1
6
15
11
13
16
14
12
INTERFACE
REGISTER
SIGNAL QUALITY
DECODER
CLOCKED
COMPARATOR
POWER SUPPLY
& RESET
TEST
CONTROL
OSCILLATOR
& CLOCK
PAUSE
DETECTOR
MULTI
PATH
DETECTOR
57kHz
8th ORDER
BAND-PASS FILTER
RDS/RDBS
DECODER
RDS/RDBS
DEMODULATOR
IIC BUS SLAVE
TRANSCEIVER
17
18
CIN
19
LVIN
20
8
7
DATA
CLOCK
DATA
CLOCK
4
4
5
9
10
3
4
5
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58
57
56
55
54 53 52
51
SERIAL DATA
I/F
SERIAL
DATA
I/F
MICRO
COMPUTER
I/F
512kbit
DELAY
RAM
DSP
CLOCK
GENERATOR/
TIMING CIRCUIT
DIGITAL
FILTER
CLOCK
GENERATOR/
TIMING CIRCUIT
PLL
ADC2
ADC1
–
+
+
DAC6
–
+
+
DAC5
–
+
+
DAC4
–
+
+
DAC3
–
+
+
DAC2
–
+
+
DAC1
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
PLCLK
XECKSTP
AVDP
VSS4
T. P
T. P
T. P
T. P
T. P
T. P
T. P
T. P
T. P
T. P
VDD4
AVSD
T. P
T. P
T. P
AVDD
VSS1
T. P
T. P
T. P
T. P
T. P
T. P
T. P
T. P
T. P
T. P
T. P
T. P
T. P
T. P
TST0
TST1
TST2
TST3
TST4
TST5
JPE1
JPE2
JPE3
VDD1
AVS3
AOUTL1
AVD3
AOUTR1
AVD5
AVS5
AVD1
AVS1
LREF
LIN
AVS7
AVD7
AOUTL2
AVDX
XTLO38
XTLI38
AVSX
AOUTR2
AVD8
AVS8
RIN
RREF
AVS2
AVD2
AVS6
AVD6
AOUTL3
AVD4
AOUTR3
AVS4
VSS2
XRST
BFOT
SCK
REDY
TRDT
XLAT
RVDT
XS24
VDD2
VSS3
SO1
SO2
SO3
SOUT
SI1
SI2
SI3
SIN
BCK
LRCK
XMST
VDD3
AVSP
XPLLEN
Click on the first or last page to see other XR-C7500R / XR-C7500RX service manuals if exist.